US Bridges

Allen Road over Washington Sec (ns)

Fair

Warren County, New Jersey · 1.25 MI North Rt 57 · Structure no. 2154170

Built
1913
112 years old, rebuilt 1990
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
36 ft
1 main span
Daily traffic
9,195
2024 count
Owner
Unknown
Unknown

About this bridge

Allen Road over Washington Sec (ns) is a wood or timber slab carrying Allen Road over Washington Sec (ns) in Warren County, New Jersey. It was built in 1913 and reconstructed in 1990, so it is 112 years old, older than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,195 vehicles a day, roughly 4% of them trucks, projected to reach 11,034 by 2044. The structure is 36 ft (11 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesAllen Road
CrossesWashington Sec (ns)
Location1.25 MI North Rt 57
RouteCity Street 0
CountyWarren County
StateNew Jersey
Coordinates40.83711, -74.84981
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56 US tons
Inventory rating37 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,195 (2024)
Projected traffic11,034 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerUnknown
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$447,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Allen Road over Washington Sec (ns) built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1990.

What condition is Allen Road over Washington Sec (ns) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does Allen Road over Washington Sec (ns) carry?

About 9,195 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Allen Road over Washington Sec (ns)?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 21 ft wide.

Who owns Allen Road over Washington Sec (ns)?

It is owned by the Unknown and maintained by the State Highway Agency.